There's also two other apps that connect with Photoshop that are pretty exciting. I recommend checking these out when they become available. From Adobe's website...
Adobe Color Lava, Adobe Eazel and Adobe Nav applications for Photoshop are also expected to be available in early May 2011, ranging in price from US$1.99-$4.99, on the iTunes App Store.
One of my images made it into a promotional video for Eazel.
And here's a little bit more about Eazel, Nav, and Color Lava.